Enclosed bus protection device

Abstract

The utility model relates to the technical field of closed bus ducts, in particular to a closed bus protection device which comprises a groove, one end of the groove is provided with an opening, the opening of the groove is provided with a cover plate, a connecting assembly is arranged between the cover plate and the groove, the connecting assembly comprises a driving rod rotationally connected to the interior of the cover plate, and one end of the driving rod is elastically connected with a telescopic rod. A groove is formed in the cover plate, a through hole matched with the telescopic rod is formed in the groove, sliding blocks are symmetrically connected to the portion, inside the cover plate, of the driving rod in a threaded mode, internal threads of the two sliding blocks are opposite, limiting blocks are symmetrically arranged on the sliding blocks, and limiting grooves matched with the limiting blocks are formed in the inner wall of the groove. Therefore, the fixing stability between the groove and the cover plate can be guaranteed, meanwhile, the speed of mounting and dismounting the cover plate is increased, the mounting efficiency is improved, the structure is simple, and manufacturing is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of enclosed bus ducts, in particular to an enclosed bus protection device. Background Art

[0002] The enclosed bus duct is briefly called a bus duct. The bus duct is a bus system composed of a metal plate (steel plate or aluminum plate) as a protective shell, a bus bar, an insulating material and related accessories. The bus duct is a device responsible for transmitting and distributing electric energy in a low-voltage power supply system, and has many advantages such as large current-carrying capacity, high protection level, convenient power distribution, compact structure, easy installation and maintenance, and long service life. The bus duct often needs to be opened regularly for maintenance.

[0003] At present, the existing enclosed bus protection device, such as the Chinese patent with the publication number of CN217115531U, discloses an enclosed bus duct cover plate and an enclosed bus duct that can be integrally laid and removed. It is formed by sequentially detachably connecting a plurality of cover plate monomers. Each cover plate monomer includes a top cover plate and two side cover plates connected to both sides of the top cover plate. A connecting column is provided at each end of each side cover plate. The two connecting columns of adjacent two cover plate monomers are connected by a tension spring. After a plurality of cover plate monomers are connected to form an enclosed bus duct cover plate, a lifting ring is connected to the top cover plate of the cover plate monomers at both ends of the enclosed bus duct cover plate. It only needs to pull the lifting ring located on the top cover plate with a steel cable to integrally remove the enclosed bus duct cover plate, and the removal efficiency is improved. However, the above device has a complex structure, poor structural stability, and is inconvenient to use.

[0004] How to ensure the stability of the fixation between the groove and the cover plate while accelerating the installation and disassembly speed of the cover plate, improving the installation efficiency, and having a simple structure and being easy to manufacture has become a technical problem that needs to be broken through.

[0005] To sum up, the existing technology obviously has inconveniences and defects in actual use, so it is necessary to improve it. Summary of the Utility Model

[0006] Aiming at the above defects, the purpose of the utility model is to provide an enclosed bus protection device, which can ensure the stability of the fixation between the groove and the cover plate while accelerating the installation and disassembly speed of the cover plate, improving the installation efficiency, and having a simple structure and being easy to manufacture.

[0007] To achieve the above purpose, the utility model provides an enclosed bus protection device, including a groove. One end of the groove is provided with an opening, a cover plate is arranged at the opening of the groove, and a connecting component is arranged between the cover plate and the groove.

[0008] The connecting component includes a driving rod rotatably connected inside the cover plate. One end of the driving rod is elastically connected with a telescopic rod. The groove is provided with a through hole matching the telescopic rod. The driving rod inside the cover plate is symmetrically threadedly connected with sliding blocks, and the internal threads of the two sliding blocks are opposite. The sliding blocks are symmetrically provided with limiting blocks, and the inner walls of the grooves are provided with limiting grooves matching the limiting blocks.

[0009] According to the enclosed busbar protection device of the present invention, the end of the driving rod away from the telescopic rod is elastically connected with a limiting head, and the inner wall of the groove is provided with a limiting hole matching the limiting head.

[0010] According to the enclosed busbar protection device of the present invention, the end of the telescopic rod close to the driving rod penetrates into the inside of the driving rod. The telescopic rod inside the driving rod is symmetrically provided with insertion blocks, and the driving rod is internally provided with slots matching the insertion blocks. The insertion blocks are slidably arranged in the slots, and an elastic member is provided between the telescopic rod and the driving rod.

[0011] According to the enclosed busbar protection device of the present invention, the end of the limiting block close to the limiting groove and the inner wall of the limiting groove are provided with mutually matching anti-slip surfaces.

[0012] According to the enclosed busbar protection device of the present invention, the elastic member is a spring.

[0013] According to the enclosed busbar protection device of the present invention, the groove is a cuboid hollow structure.

[0014] The purpose of the present invention is to provide an enclosed busbar protection device, including a connecting component. By using the mutual cooperation of structures such as the limiting head and the limiting block, the speed of installing and disassembling the cover plate is accelerated, and the installation efficiency is improved; arc surfaces are provided at both the limiting head and the end of the telescopic rod away from the driving rod to reduce the friction between the limiting head, the telescopic rod and the groove; the end of the driving rod away from the telescopic rod is elastically connected with a limiting head, and the inner wall of the groove is provided with a limiting hole matching the limiting head. The mutual cooperation of the limiting head and the limiting hole can ensure the stability of the fixation between the groove and the cover plate. In summary, the beneficial effects of the present invention are: while ensuring the stability of the fixation between the groove and the cover plate, the speed of installing and disassembling the cover plate is accelerated, the installation efficiency is improved, and the structure is simple and convenient for manufacturing. Description of the Drawings

[0015] Figure 1 is the structural diagram of the present invention;

[0016] Figure 2 is the structural diagram of the groove;

[0017] Figure 3 is the sectional view at the driving rod;

[0018] In the figure: 1 - groove, 11 - limiting groove, 12 - limiting hole, 2 - cover plate, 3 - connecting component, 31 - driving rod, 311 - telescopic rod, 312 - limiting head, 313 - elastic component, 32 - sliding block, 321 - limiting block. Detailed implementation mode

[0019] In order to make the purpose, technical solution and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0020] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0021] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0022] See Figures 1 to 3, the utility model provides a closed bus protection device, which includes a groove 1. The groove 1 is a hollow cuboid structure, and one end of the groove 1 is provided with an opening. A cover plate 2 is arranged at the opening of the groove 1. A connecting component 3 is arranged between the cover plate 2 and the groove 1. The connecting component 3 includes a driving rod 31 penetrating through the inside of the cover plate 2. The driving rod 31 is rotatably connected to the inside of the cover plate 2. One end of the driving rod 31 is elastically connected with a telescopic rod 311 (one end of the telescopic rod 311 close to the driving rod 31 penetrates into the driving rod 31. Symmetric insertion blocks are arranged on the telescopic rod 311 inside the driving rod 31. Slots matched with the insertion blocks are arranged inside the driving rod 31. The insertion blocks are slidably arranged in the slots, and an elastic member 313 is arranged between the telescopic rod 311 and the driving rod 31). The telescopic rod 311 can retract into the driving rod 31, and the telescopic rod 311 can drive the driving rod 31 to rotate. A through hole matched with the telescopic rod 311 is arranged on the groove 1. Press the telescopic rod 311 to make the telescopic rod 311 retract into the driving rod 31, align the telescopic rod 311 with the position of the through hole, and push the cover plate 2 towards the inside of the groove 1. When the telescopic rod 311 is directly opposite to the through hole, the telescopic rod 311 pops out of the driving rod 31 under the action of the elastic member 313, and the positioning and installation of the cover plate 2 are completed.

[0023] See Figures 1 to 3 , symmetrically threaded sliding blocks 32 are connected to the driving rod 31 inside the cover plate 2, and the internal threads of the two sliding blocks 32 are opposite (the external threads of the driving rod 31 matched with the two sliding blocks 32 are also opposite). Limit blocks 321 are symmetrically arranged on the sliding blocks 32, and limit grooves 11 matched with the limit blocks 321 are arranged on the inner wall of the groove 1. After the cover plate 2 is installed, rotate the telescopic rod 311. The telescopic rod 311 drives the driving rod 31 to rotate. The sliding blocks 32 cannot rotate with the driving rod 31 and can only move towards each other on the driving rod 31. When the limit blocks 321 are inserted into the limit grooves 11, the fixing of the cover plate 2 is completed.

[0024] See Figures 1 to 3 , preferably, a limit head 312 is elastically connected to the end of the driving rod 31 far from the telescopic rod 311 (one end of the limit head 312 close to the driving rod 31 penetrates into the driving rod 31. Symmetric convex blocks are arranged on the limit head 312 inside the driving rod 31. A chute matched with the convex blocks is arranged inside the driving rod 31. The convex blocks are slidably arranged in the chute, and an elastic member 313 is arranged between the limit head 312 and the driving rod 31). A limit hole 12 matched with the limit head 312 is arranged on the inner wall of the groove 1, and the limit hole 12 does not penetrate. The limit head 312 and the limit hole 12 cooperate with each other, which can further ensure the stability of the cover plate 2 and facilitate the positioning and installation of the cover plate 2.

[0025] See Figures 1 to 3 , preferably, arc surfaces are arranged at the ends of the limit head 312 and the telescopic rod 311 far from the driving rod 31 to reduce the friction between the limit head 312, the telescopic rod 311 and the groove 1.

[0026] See Figures 1 to 3 , preferably, anti-slip surfaces are provided on one end of the limiting block 321 close to the limiting groove 11 and on the inner wall of the limiting groove 11, further improving the stability of the cover plate 2.

[0027] See Figures 1 to 3 , preferably, the elastic member 313 is a spring, providing a return power.

[0028] See Figures 1 to 3 , align the limiting head 312 with the limiting hole 12 and the telescopic rod 311 with the through hole. Press the telescopic rod 311 to retract the telescopic rod 311 into the driving rod 31, and push the cover plate 2 into the groove 1. When the telescopic rod 311 is aligned with the through hole, the telescopic rod 311 pops out of the driving rod 31 under the action of the elastic member 313. At the same time, the limiting head 312 cooperates with the limiting hole 12. Rotate the telescopic rod 311. When the limiting block 321 is inserted into the limiting groove 11, the installation and fixation of the cover plate 2 are completed.

[0029] The utility model provides a closed bus protection device, including a connection component. By using the cooperation of structures such as the limiting head and the limiting block, the speed of installing and disassembling the cover plate is accelerated, and the installation efficiency is improved; arc surfaces are provided at one ends of the limiting head and the telescopic rod far from the driving rod, reducing the friction between the limiting head, the telescopic rod and the groove; the driving rod is elastically connected with the limiting head at one end far from the telescopic rod, and a limiting hole cooperating with the limiting head is provided on the inner wall of the groove. The cooperation between the limiting head and the limiting hole can ensure the stability of the fixation between the groove and the cover plate. In summary, the beneficial effects of the utility model are: while ensuring the stability of the fixation between the groove and the cover plate, the speed of installing and disassembling the cover plate is accelerated, the installation efficiency is improved, and the structure is simple and easy to manufacture.

[0030] Certainly, the utility model can also have other various embodiments. Without departing from the spirit and essence of the utility model, those skilled in the art can make various corresponding changes and deformations according to the utility model. However, these corresponding changes and deformations should all fall within the protection scope of the appended claims of the utility model.

Claims

1. A closed busbar protection device, characterized in that, It includes a groove, one end of the groove is provided with an opening, a cover plate is provided at the opening of the groove, and a connecting component is provided between the cover plate and the groove; The connecting component includes a driving rod rotatably connected inside the cover plate. One end of the driving rod is elastically connected with a telescopic rod. The groove is provided with a through hole for cooperating with the telescopic rod. Symmetrically threaded on the driving rod inside the cover plate are sliding blocks, and the internal threads of the two sliding blocks are opposite. The sliding blocks are symmetrically provided with limiting blocks, and the inner walls of the groove are provided with limiting grooves for cooperating with the limiting blocks.

2. The enclosed bus protection device according to claim 1, wherein One end of the driving rod away from the telescopic rod is elastically connected with a limiting head, and the inner wall of the groove is provided with a limiting hole for cooperating with the limiting head.

3. The enclosed busbar protection device according to claim 1, characterized in that One end of the telescopic rod close to the driving rod penetrates into the driving rod. Symmetrically arranged on the telescopic rod inside the driving rod are insertion blocks. The driving rod is internally provided with slots for cooperating with the insertion blocks. The insertion blocks are slidably arranged in the slots, and an elastic member is provided between the telescopic rod and the driving rod.

4. The enclosed bus protection device according to claim 2, characterized in that, Both the limiting head and one end of the telescopic rod away from the driving rod are provided with arc surfaces.

5. The enclosed busbar protection device according to claim 1, characterized in that, One end of the limiting block close to the limiting groove and the inner wall of the limiting groove are provided with anti-slip surfaces that cooperate with each other.

6. The enclosed bus protection device according to claim 3, characterized in that, The elastic member is a spring.

7. The enclosed busbar protection device according to claim 1, characterized in that, The groove is a cuboid hollow structure.

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